1 /* toplev.h - Various declarations for functions found in toplev.c
2 Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007,
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
26 #include "diagnostic-core.h"
28 /* If non-NULL, return one past-the-end of the matching SUBPART of
30 #define skip_leading_substring(whole, part) \
31 (strncmp (whole, part, strlen (part)) ? NULL : whole + strlen (part))
33 extern int toplev_main (int, char **);
34 extern void strip_off_ending (char *, int);
35 extern void _fatal_insn_not_found (const_rtx
, const char *, int, const char *)
37 extern void _fatal_insn (const char *, const_rtx
, const char *, int, const char *)
40 #define fatal_insn(msgid, insn) \
41 _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__)
42 #define fatal_insn_not_found(insn) \
43 _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__)
45 extern void rest_of_decl_compilation (tree
, int, int);
46 extern void rest_of_type_compilation (tree
, int);
47 extern void tree_rest_of_compilation (tree
);
48 extern void init_optimization_passes (void);
49 extern void finish_optimization_passes (void);
50 extern bool enable_rtl_dump_file (void);
52 extern void announce_function (tree
);
54 extern void error_for_asm (const_rtx
, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
55 extern void warning_for_asm (const_rtx
, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
56 extern void warn_deprecated_use (tree
, tree
);
57 extern bool parse_optimize_options (tree
, bool);
60 extern void output_quoted_string (FILE *, const char *);
61 extern void output_file_directive (FILE *, const char *);
64 extern void wrapup_global_declaration_1 (tree
);
65 extern bool wrapup_global_declaration_2 (tree
);
66 extern bool wrapup_global_declarations (tree
*, int);
67 extern void check_global_declaration_1 (tree
);
68 extern void check_global_declarations (tree
*, int);
69 extern void emit_debug_global_declarations (tree
*, int);
70 extern void write_global_declarations (void);
72 extern void dump_memory_report (bool);
74 extern void target_reinit (void);
76 /* A unique local time stamp, might be zero if none is available. */
77 extern unsigned local_tick
;
79 /* Top-level source file. */
80 extern const char *main_input_filename
;
82 extern const char *dump_base_name
;
83 extern const char *dump_dir_name
;
84 extern const char *aux_base_name
;
85 extern const char *aux_info_file_name
;
86 extern const char *profile_data_prefix
;
87 extern const char *asm_file_name
;
88 extern bool exit_after_options
;
90 /* True if the user has tagged the function with the 'section'
93 extern bool user_defined_section_attribute
;
96 extern int flag_rerun_cse_after_global_opts
;
98 /* Things to do with target switches. */
99 extern void print_version (FILE *, const char *);
100 extern void * default_get_pch_validity (size_t *);
101 extern const char * default_pch_valid_p (const void *, size_t);
103 /* The hashtable, so that the C front ends can pass it to cpplib. */
104 extern struct ht
*ident_hash
;
106 /* This function can be used by targets to set the flags originally
107 implied by -ffast-math and -fno-fast-math. */
109 extern void set_fast_math_flags (int);
111 extern void set_unsafe_math_optimizations_flags (int);
113 /* Handle -d switch. */
114 extern void decode_d_option (const char *);
116 /* Return true iff flags are set as if -ffast-math. */
117 extern bool fast_math_flags_set_p (void);
118 extern bool fast_math_flags_struct_set_p (struct cl_optimization
*);
120 /* Inline versions of the above for speed. */
121 #if GCC_VERSION < 3004
123 /* Return log2, or -1 if not exact. */
124 extern int exact_log2 (unsigned HOST_WIDE_INT
);
126 /* Return floor of log2, with -1 for zero. */
127 extern int floor_log2 (unsigned HOST_WIDE_INT
);
129 #else /* GCC_VERSION >= 3004 */
131 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
132 # define CLZ_HWI __builtin_clzl
133 # define CTZ_HWI __builtin_ctzl
134 # elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
135 # define CLZ_HWI __builtin_clzll
136 # define CTZ_HWI __builtin_ctzll
138 # define CLZ_HWI __builtin_clz
139 # define CTZ_HWI __builtin_ctz
143 floor_log2 (unsigned HOST_WIDE_INT x
)
145 return x
? HOST_BITS_PER_WIDE_INT
- 1 - (int) CLZ_HWI (x
) : -1;
149 exact_log2 (unsigned HOST_WIDE_INT x
)
151 return x
== (x
& -x
) && x
? (int) CTZ_HWI (x
) : -1;
154 #endif /* GCC_VERSION >= 3004 */
156 /* Functions used to get and set GCC's notion of in what directory
157 compilation was started. */
159 extern const char *get_src_pwd (void);
160 extern bool set_src_pwd (const char *);
162 /* Functions used to manipulate the random seed. */
164 extern const char *get_random_seed (bool);
165 extern const char *set_random_seed (const char *);
167 #endif /* ! GCC_TOPLEV_H */